小红细胞
Microcyte \Mi"cro*cyte\, n. [Micro- + Gr. ? a hollow vessel.] (Physiol.) One of the elementary granules found in blood. They are much smaller than an ordinary corpuscle, and are particularly noticeable in disease, as in an[ae]mia.
microcyte n : an abnormally small red blood cell (less than 5 microns in diameter)